The core difference in Guardians is that almost every one of these bits of rhetoric is then undercut by a joke. Like when Groot delivers his one repeated "I am Groot!" line as Rocket miraculously understands / reacts / and translates back with complexity. Then there's the moment where Groot supports Peter and Peter lauds him for it, only to be undercut when they see Groot vacantly eating flower off his own arm. Then there's the discussion on the percentage of the plan, or the great moment where Drax admits he wasn't listening, or the debate over Rocket's fake laugh. When you look at the scene structurally, you realize the real obstacle in the scene isn't the magnitude of their decision before them... It's the jokes. Everytime they try to accomplish something, they joke it away. But remember! The jokes come from character, right? So you then realized they are using a comedy roundtable to showcase that real obstacle to them making this heroic decision is each other and each others' perspective. Which is exactly why the scene works like gangbusters. It's perfect conflict-oriented storytelling through humor alone. Every line is just a character coming at another with perspective, spitting venom, and inverting our expectations while somehow being completely straight within the reality of the moment. And best of all, the scene has one big emotional exchange left in the tank for when it finally turns with a moment of surprising honesty. Suddenly, the film gets real real and Rocket expresses to the truth at the center of all these "Rallying the heroes" scenes we've seen time and time again, all by saying "... You are asking us to die." and when that fact hits them, there's no jokes. Just the meaning. And it's free to sit there and hit us for real.
